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EC number: 422-600-5 | CAS number: 73936-91-1
Biodegradation in water: screening tests
Administrative data
- Endpoint:
- biodegradation in water: ready biodegradability
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Guideline study obtained through inquiry process; SNIF file obtained from ECHA.
Data source
Reference
- Reference Type:
- other: SNIF
- Title:
- Unnamed
- Year:
- 1 997
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- EU Method C.4-C (Determination of the "Ready" Biodegradability - Carbon Dioxide Evolution Test)
- Deviations:
- not specified
- GLP compliance:
- yes
Test material
- Reference substance name:
- Body responsible for the test
- IUPAC Name:
- Body responsible for the test
- Test material form:
- not specified
Constituent 1
Study design
- Oxygen conditions:
- not specified
- Inoculum or test system:
- not specified
- Duration of test (contact time):
- 28 d
Reference substance
- Reference substance:
- aniline
Results and discussion
% Degradation
- Parameter:
- % degradation (CO2 evolution)
- Value:
- 0
- Sampling time:
- 28 d
- Details on results:
- Points of degradation plot (test substance):
0 % degradation after 2 d
0 % degradation after 5 d
1.9 % degradation after 7 d
3.4 % degradation after 9 d
0.2 % degradation after 12 d
0.7 % degradation after 14 d
1 % degradation after 19 d
1.7 % degradation after 23 d
0 % degradation after 28 d
BOD5 / COD results
- Results with reference substance:
- Points of degradation plot (reference substance):
0 % degradation after 2 d
26 % degradation after 5 d
61.4 % degradation after 7 d
69.1 % degradation after 9 d
68.8 % degradation after 12 d
62.5 % degradation after 14 d
76.5 % degradation after 19 d
81.6 % degradation after 23 d
84.4 % degradation after 28 d
Applicant's summary and conclusion
- Validity criteria fulfilled:
- not specified
- Interpretation of results:
- under test conditions no biodegradation observed
- Conclusions:
- Degradation = 0 % after 28 days
- Executive summary:
The test substance was not readily biodegradable (0% degradation after 28 d) in a GLP study according to EU Method C.4 -C (Modified Sturm Test).
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